Gone are the days of recruiting cocky, adrenaline-junkie types — living embodiments of “The Right Stuff” — as with the 1960s American space program. The film follows six volunteers who are quarantined in a small habitat for an entire year in order to simulate living conditions on Mars. The habitat had a small living room, 1.5 bathrooms, a galley kitchen and tiny living quarters for each of the six up a flight of stairs. “There were difficult times, but I went into the dome after living in Shanghai, with so many people and so much pollution and culture shock. “It was like an adult Disney.”The other participants might not go that far, but all would jump at a chance to travel to Mars for real.